4-29
Frequency jump function
Frequency jump can be used to avoid resonance points on machinery.
Frequency jump is to jump the frquency command and avoid usual operation
within the limit of the jump frequency.
Output frequency changes continuously according to adjustable time.
It is possible three different points are set for the jump frequency.
Set item
Function code
Setting limit
Contents
Jump frequency 1/2/3
A063/A065/A067
0.00-400.0
Unit: Hz
Set the frequency fj of center to jump.(Note)
Jump frequency Width
1/2/3
A064/A066/A068
0.00-10.00
Unit:Hz
Set 1/2 value
of frequency width to jump (Note)
(Note) The frequency to jump is fj + 2 (Hz).
Acceleration stop function
When the inertial moment of a load is high, this is the function to wait
until the slip of the motor on starting becomes smaller.
Use when the overcurrent trip occurs on starting.
Set item
Function code
Data
Contents
Acceleration
stop frequency
A069
0.00-400.0
Unit: Hz
Set the frequency to be held.
Acceleration
stop time
A070
0.0-60.0
Unit: second
Set the time to hold the frequency.
Chapter 4 Explanation of function
A069:Acceleration stop frequency
A070:Acceleration stop time
Relation code
A070
A069
Output frequency
Frequency command
Output frequency
Frequency command
A063
A065
A067
A064
A064
A066
A066
A068
A068
A063:Jump frequency1
A064:Jump frequency band1
A065:Jump frequency2
A066:Jump frequency band2
A067:Jump frequency 3
A068:Jump frequency band3
Relation code
